diff --git a/supply/channel/order.go b/supply/channel/order.go
index d681ead..98e8364 100644
--- a/supply/channel/order.go
+++ b/supply/channel/order.go
@@ -95,7 +95,7 @@ func (o *order) Submit(ctx context.Context, channelId string, args ArgsOrderSubm
 }
 
 // LadingBill @Title 提单
-func (o *order) LadingBill(ctx context.Context, channelId string, orderSn uint64) (err error) {
+func (o *order) LadingBill(ctx context.Context, channelId string, orderSn string) (err error) {
 	reply := 0
 	xClient, err := client.GetClient(o)
 	if err != nil {
@@ -105,7 +105,7 @@ func (o *order) LadingBill(ctx context.Context, channelId string, orderSn uint64
 }
 
 // Close @Title 关闭
-func (o *order) Close(ctx context.Context, channelId string, orderSn uint64) (err error) {
+func (o *order) Close(ctx context.Context, channelId string, orderSn string) (err error) {
 	reply := 0
 	xClient, err := client.GetClient(o)
 	if err != nil {